RC Repeater

[jez01]

Hi guys,
Does anyone have a circuit diagram or any ideas for a RC repeater? I have a very large property and I am using a elec heli with video to keep an eye on everything, but I just don't have radio range to cover it all. I would appreciate any help in this area.

Jeremy

[Accu157]

Welcome to RCGroups!
I don't think that would be possible with current radio control setups. Only if you operate on a particular ham band, and if you've got a team of people with degree's in electrical engineering to make a custom receiver able to handle the wave interference among the multiple transmitters. It's just not like a voice or the digital communications that Hams use. Sorry. :( The idea, kept very abstract, is practical under certain applications. However, I doubt anyone needs anything more than the stock transmission distance even on a very large property. The complexity of this system is pretty extensive. Take the extra space to be a blessing buffer zone, you don't need radio coverage to reach all corners of it. :) There is a easier "trick" to get near-infinite range with your radio system, but lag would be inappropriate, and unless the system was for research, government, military, or education, it would probably fall under the category of domestic terrorism. I cannot think of any reason at this day and age why someone would want this "trick" for casual r/c, so I won't share it.

[AndyOne]

Jez,

There have been on-channel repeaters for military comms since the 1980s but require very specialist equipment and antenna set-up. Far better but probably not legal would be to repeat the signal on a different channel and have two receivers on the appropriate channels then you would need a system to choose the best signal from the receivers to feed to the servos.
Jett Pilot has shown us some videos where he has flown several miles out with a stock RC set-up but this requires good separation from the video Tx on the model.

Andy.

[DIYMark]

i kno this sounds a bit simple but wouldnt this work? ...a rc reciever that recieved the transmitters signal and retransmitted the output (signal out put from recivers channel) through a rf transmitter?

thats the basics of it all you would need is a rf transmitter that works in ur frequency range?

like you can already by fm transmitters (ive seen 1km range for $12 kit) in kits at electronic stores that operate at 88 - 108 mhz and with simple adjustments to the coil/s you could change the output frequency lower?!